Java Uninstall Tool For Mac

| 04-03-2021
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This topic includes the following sections:

System Requirements for Installing the JDK on macOS

To completely remove Java from your device, you need to follow systematic steps. This is done in three parts. Follow the steps given below to know how to delete Java on Mac. Part 1: Remove Java Plugins from your Mac. To remove Java completely from your device, you need to begin by removing the Java plugin that is present on your device. Search for “Java” in “Apps & features” and press “Uninstall” on Java (64-bit): Do the same is for Java(TM) SE Development Kit: Removing Java is in progress: And Java successfully removed from your PC. If you want to remove Java from registry Oracle recommends to use Microsoft utility. The reason you’re receiving this message is due to the removal of Java support in newer versions of OS X for security reasons. Older software such as Adobe Photoshop and Illustrator requires legacy Java support. Without a compatible Java command-line tool for these software, you’ll get this pop-up every time you turn on your Mac computer. After a Java 6 installation, there is a large collection of Java files is deeply embedded into OS X, and, unlike the simple plug-in for the browser, it's not easy to uninstall all those files.

The following are the system requirements for installing the JDK on macOS:

  • Any Intel-based computer running macOS.

  • Administrator privileges.

    You cannot install Java for a single user. Installing the JDK on macOS is performed on a systemwide basis for all users. Administrator privileges are required to install the JDK on macOS.

Determining the Default JDK Version on macOS

When starting a Java application through the command line, the system uses the default JDK.

There can be multiple JDKs installed on the macOS system.

You can determine which version of the JDK is the default by entering java -version in a Terminal window. If the installed version is 11 Interim 0, Update 0, and Patch 0, then you see a string that includes the text 11. For example:

To run a different version of Java, either specify the full path, or use the java_home tool. For example:

$ /usr/libexec/java_home -v 11 --exec javac -version

Installing the JDK on macOS

  1. Download the JDK .dmg file, jdk-11.interim.update.patch-macosx-x64.dmg.

    Before the file can be downloaded, you must accept the license agreement.

  2. From either the browser Downloads window or from the file browser, double-click the .dmg file to start it.
    A Finder window appears that contains an icon of an open box and the name of the .pkg file.
  3. Double-click the JDK 11.pkg icon to start the installation application.
    The installation application displays the Introduction window.
  4. Click Continue.
  5. Click Install.
    A window appears that displays the message: Installer is trying to install new software. Enter your password to allow this.
  6. Enter the Administrator user name and password and click Install Software.
    The software is installed and a confirmation window is displayed.
After the software is installed, you can delete the .dmg file if you want to save disk space.

Uninstalling the JDK on macOS

You must have Administrator privileges.

Note:

Do not attempt to uninstall Java by removing the Java tools from /usr/bin. This directory is part of the system software and any changes will be reset by Apple the next time that you perform an update of the OS.

  1. Go to /Library/Java/JavaVirtualMachines.
  2. Remove the directory whose name matches the following format by executing the rm command as a root user or by using the sudo tool:
    /Library/Java/JavaVirtualMachines/jdk-interim.update.patch.jdk

    For example, to uninstall 11 Interim 0 Update 0 Patch 0:

    $ rm -rf jdk-11.jdk

Java

Installation FAQ on macOS Platform

This topic provides answers for the following frequently asked questions about installing JDK on macOS computers.

1. How do I find out which version of Java is the system default?

When you run a Java application from the command line, it uses the default JDK. If you do not develop Java applications, then you do not need to worry about this. See Determining the Default JDK Version on macOS.

2. How do I uninstall Java?

See Uninstalling the JDK on macOS.

3. After installing Java for macOS 2012-006, can I continue to use Apple's Java 6 alongside the macOS JDK for Java 11?

If you want to continue to develop with Java 6 using command-line, then you can modify the startup script for your favorite command environment. For bash, use this:

How To Uninstall Java

$ export JAVA_HOME=`/usr/libexec/java_home -v 11`

Some applications use /usr/bin/java to call Java. After installing Java for macOS 2012-006, /usr/bin/java will find the newest JDK installed, and will use that for all of the Java-related command-line tools in /usr/bin. You may need to modify those applications to find Java 6, or contact the developer for a newer version of the application.

4. Can I restore Apple Java after uninstalling Oracle Java?

Go back to Apple Java using the following instructions:

  1. Uninstall Oracle Java by deleting the plug-in file. From a command-line, enter:

    $ sudo rm -rf '/Library/Internet Plug-Ins/JavaAppletPlugin.plugin'

  2. Create a symlink using the following command, entered on a single line:

    $ sudo ln -s /System/Library/Java/Support/CoreDeploy.bundle/Contents/JavaAppletPlugin.plugin '/Library/Internet Plug-Ins/JavaAppletPlugin.plugin'

5. What happened to the Java Preferences app in Application Utilities?

The Java Preferences app was part of the Apple Java installation and is not used by Oracle Java. Therefore, macOS releases from Apple that do not include Apple Java will not include Java Preferences.

Last updated on February 17th, 2018

The following pop up message is displayed randomly on a Macbook Pro: 'To use the java command line tool you need to install a JDK. Click 'More info…' to visit the Java Developer kit download website'.

Uninstall Java From Mac

The error is received because an installed application needs Java to run properly, but in newer versions of OS X, the Java support has been removed for security reasons.

This tutorial contains instructions to fix the following problem on MAC OS X: 'To use the 'java' command-line tool you need to install a JDK'

How to FIX: JAVA command line tools needs JDK (Mac OS X).

Step 1. Delete 'facebook.videochat.xxx.plist file

1. Using Finder click Go to Folder
2. At the search box type: ~/Library/LaunchAgents/

3. Right-click at the 'com.facebook.videochat.USERNAME.plist'* and select Move to Trash *

* Note: If you cannot find the 'com.facebook.videochat.USERNAME.plist' file then continue to the next step.

4. Then Empty Trash.
5.Restart you MAC and your problem should be gone. *

Uninstall Java Mac Os X

* Note: If the problems persists then continue to the next step.

Step 2. Download and install JAVA.

1. Download JAVA from the following website:

2. When the download is completed, open the .dmg file and install Java 6 runtime for MAC OS X.

3. When the installation is completed, restart your MAC.

Mac Os Uninstall Java

That's it! Let me know if this guide has helped you by leaving your comment about your experience. Please like and share this guide to help others.

Java Uninstall Tool For Mac Mojave

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Java Uninstall Tool For Macbook

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